一种电动挖掘机用中空轴体支重轮
By designing a movable shell and floating oil seal structure on the track roller of an electric excavator, and utilizing hydraulic oil buffering and rolling contact support, the problem of unbalanced compression of the floating oil seal on uneven road surfaces is solved, improving the sealing reliability and service life of the track roller, and reducing friction loss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU KAITI AISIYOU MECHANICAL PARTS CO LTD
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
When the track rollers of an electric excavator are working on uneven terrain, the compression of the floating oil seal O-rings becomes unbalanced, leading to excessively tight or loose seals, causing lubricating oil leakage and bearing sleeve wear, which affects the reliability and lifespan of the track rollers.
Design a hollow shaft support roller with a symmetrically distributed movable shell and floating oil seal structure. Utilize hydraulic oil to buffer the compressive force changes caused by axial movement, and provide lateral support through the rolling contact between the rotating ball and the fixed ring to avoid asymmetrical force and friction loss.
Effectively and evenly distributes the force on the floating oil seal, reduces seal wear and lubricant leakage, improves the sealing reliability and service life of the support roller, and reduces energy loss.
Smart Images
Figure CN122402671A_ABST